Job Vacancy Principal Enterprise Architect - Companies House - G7

As Principal Enterprise Architect (Data), you’ll play a leading role in shaping how trusted company data is designed, governed and reused at national scale, supporting services accessed by millions of users every day.

This is a senior technical leadership role where your decisions will directly influence:

• How data is treated as a core enterprise asset

• How legacy and modern systems work together

• How trust, interoperability and reuse are built into data by design

What you’ll be doing

As Principal Enterprise Architect (Data), you will:

• Set the enterprise‑level direction for data architecture and strategy

• Define and govern data models, standards and integration approaches

• Design architectures that work across legacy systems, cloud platforms and third‑party services

• Act as the authoritative voice on enterprise data, providing assurance and guidance across programmes and projects

• Enable secure, trusted and reusable data across the organisation

• Work closely with architects, delivery teams and senior stakeholders to reduce risk and improve data quality

• Influence long‑term transformation while supporting immediate delivery needs

Your technical impact

You’ll lead work across:

• Enterprise and domain data modelling

• Canonical data definitions and integration patterns

• Data governance, quality, ownership and lifecycle management

• APIs, distributed services and interoperability

• Secure handling of personal and sensitive data

• Alignment with legal, regulatory and policy requirements

You’ll also provide specialist advice on:

• Data migrations and legacy transformation

• Platform and tooling decisions

• Enterprise standards and architectural assurance